First and foremost, take care of the fundamentals; make sure you have good content that people would want to know. As a general rule of thumb, every single post should be so well written and/or filled with such great content that if you read it a month later, you will learn something. Blog posts shouldn't be thrown together; if you want to get tons of traffic in the future, have a solid history of great, informative post.
Now, there are other great ways to get the word out about your blog and gain momentum a little quicker, but your best bet is going to be spending your time studying the art of Search Engine Optimization (or SEO). Focus on targeting keywords for each post you make by utilizing SEnuke and the Google Adwords Keyword Tool in combination (explained how below).
SEnuke is basically a crazy super-site booster. It yanks your site up from nothing to something people see everywhere they search . When you write an exceptionally good blog, use SEnuke to submit it to dozens of sites with the click of a button, and at the end / beginning provide a link to your blog saying something like "For more information on '[page title here]', visit my blog to [your link here with GOOD keyword anchor text].
Anyways, SEnuke has a tool that lets you search how competitive a keyword/keyphrase is with the "Niche Research" tool. For your first time, you should only go after terms deemed "doable", "easy", or "extremely easy".
Take those terms and use the adwords tool to see how popular they are. This tells you how many people search that term per month (estimated). Your overall goal is to find terms that are as easy as possible with as many searches per month as possible.
Once you get the hang of this process, you can go after the harder words and even the "Don't waste your time" can be achieved with enough skill!
You can also use the other parts of SEnuke to get backlinks to each post you make and your blog in general - it will start showing you the power of optimizing your website for search engines!
If you have any questions about the program specifically I'd be happy to help you. I'm new but i think there is some way to contact me if you need some help - if not you can email me (gunther[DOT]jordan[AT]gmail[DOT]com).
Good luck!